[thirdparty/gcc.git] / libgfortran / ISO_Fortran_binding.h

/* Declarations for ISO Fortran binding.
   Copyright (C) 2018-2024 Free Software Foundation, Inc.
   Contributed by Daniel Celis Garza  <celisdanieljr@gmail.com>

This file is part of the GNU Fortran runtime library (libgfortran).

Libgfortran is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3, or (at your option)
any later version.

Libgfortran is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

Under Section 7 of GPL version 3, you are granted additional
permissions described in the GCC Runtime Library Exception, version
3.1, as published by the Free Software Foundation.

You should have received a copy of the GNU General Public License and
a copy of the GCC Runtime Library Exception along with this program;
see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
<http://www.gnu.org/licenses/>.  */

#ifndef ISO_FORTRAN_BINDING_H
#define ISO_FORTRAN_BINDING_H

#ifdef __cplusplus
extern "C" {
#endif

#include <stddef.h>  /* Standard ptrdiff_t tand size_t. */
#include <stdint.h>  /* Integer types. */

/* Constants, defined as macros. */
#define CFI_VERSION 1
#define CFI_MAX_RANK 15

/* Attributes. */
#define CFI_attribute_pointer 0
#define CFI_attribute_allocatable 1
#define CFI_attribute_other 2

/* Error codes.
   Note that CFI_FAILURE and CFI_INVALID_STRIDE are specific to GCC
   and not part of the Fortran standard   */
#define CFI_SUCCESS 0
#define CFI_FAILURE 1
#define CFI_ERROR_BASE_ADDR_NULL 2
#define CFI_ERROR_BASE_ADDR_NOT_NULL 3
#define CFI_INVALID_ELEM_LEN 4
#define CFI_INVALID_RANK 5
#define CFI_INVALID_TYPE 6
#define CFI_INVALID_ATTRIBUTE 7
#define CFI_INVALID_EXTENT 8
#define CFI_INVALID_STRIDE 9
#define CFI_INVALID_DESCRIPTOR 10
#define CFI_ERROR_MEM_ALLOCATION 11
#define CFI_ERROR_OUT_OF_BOUNDS 12

/* CFI type definitions. */
typedef ptrdiff_t CFI_index_t;
typedef int8_t CFI_rank_t;
typedef int8_t CFI_attribute_t;
typedef int16_t CFI_type_t;

/* CFI_dim_t. */
typedef struct CFI_dim_t
  {
    CFI_index_t lower_bound;
    CFI_index_t extent;
    CFI_index_t sm;
  }
CFI_dim_t;

/* CFI_cdesc_t, C descriptors are cast to this structure as follows:
   CFI_CDESC_T(CFI_MAX_RANK) foo;
   CFI_cdesc_t * bar = (CFI_cdesc_t *) &foo;
 */
typedef struct CFI_cdesc_t
 {
    void *base_addr;
    size_t elem_len;
    int version;
    CFI_rank_t rank;
    CFI_attribute_t attribute;
    CFI_type_t type;
    CFI_dim_t dim[];
 }
CFI_cdesc_t;

/* CFI_CDESC_T with an explicit type. */
#define CFI_CDESC_TYPE_T(r, base_type) \
	struct { \
		base_type *base_addr; \
		size_t elem_len; \
		int version; \
		CFI_rank_t rank; \
		CFI_attribute_t attribute; \
		CFI_type_t type; \
		CFI_dim_t dim[r]; \
	}
#define CFI_CDESC_T(r) CFI_CDESC_TYPE_T (r, void)

/* CFI function declarations. */
extern void *CFI_address (const CFI_cdesc_t *, const CFI_index_t []);
extern int CFI_allocate (CFI_cdesc_t *, const CFI_index_t [], const CFI_index_t [],
			 size_t);
extern int CFI_deallocate (CFI_cdesc_t *);
extern int CFI_establish (CFI_cdesc_t *, void *, CFI_attribute_t, CFI_type_t, size_t,
			  CFI_rank_t, const CFI_index_t []);
extern int CFI_is_contiguous (const CFI_cdesc_t *);
extern int CFI_section (CFI_cdesc_t *, const CFI_cdesc_t *, const CFI_index_t [],
			const CFI_index_t [], const CFI_index_t []);
extern int CFI_select_part (CFI_cdesc_t *, const CFI_cdesc_t *, size_t, size_t);
extern int CFI_setpointer (CFI_cdesc_t *, CFI_cdesc_t *, const CFI_index_t []);

/* Types and kind numbers. Allows bitwise and to reveal the intrinsic type of a kind type. It also allows us to find the kind parameter by inverting the bit-shift equation.
   CFI_type_kind_shift = 8
   CFI_intrinsic_type  = 0 0 0 0 0 0 0 0 0 0 1 0
   CFI_type_kind       = 0 0 0 0 0 0 0 0 1 0 0 0
   CFI_type_example    = CFI_intrinsic_type + (CFI_type_kind << CFI_type_kind_shift)
   Defining the CFI_type_example.
   CFI_type_kind       = 0 0 0 0 0 0 0 0 1 0 0 0  << CFI_type_kind_shift
			-------------------------
			 1 0 0 0 0 0 0 0 0 0 0 0  +
   CFI_intrinsic_type  = 0 0 0 0 0 0 0 0 0 0 1 0
			-------------------------
   CFI_type_example    = 1 0 0 0 0 0 0 0 0 0 1 0
   Finding the intrinsic type with the logical mask.
   CFI_type_example    = 1 0 0 0 0 0 0 0 0 0 1 0  &
   CFI_type_mask       = 0 0 0 0 1 1 1 1 1 1 1 1
			-------------------------
   CFI_intrinsic_type  = 0 0 0 0 0 0 0 0 0 0 1 0
   Using the intrinsic type and kind shift to find the kind value of the type.
   CFI_type_kind = (CFI_type_example - CFI_intrinsic_type) >> CFI_type_kind_shift
   CFI_type_example   = 1 0 0 0 0 0 0 0 0 0 1 0  -
   CFI_intrinsic_type = 0 0 0 0 0 0 0 0 0 0 1 0
			-------------------------
			1 0 0 0 0 0 0 0 0 0 0 0  >> CFI_type_kind_shift
			-------------------------
   CFI_type_kind      = 0 0 0 0 0 0 0 0 1 0 0 0
 */
#define CFI_type_mask 0xFF
#define CFI_type_kind_shift 8

/* Intrinsic types. Their kind number defines their storage size. */
#define CFI_type_Integer 1
#define CFI_type_Logical 2
#define CFI_type_Real 3
#define CFI_type_Complex 4
#define CFI_type_Character 5

/* Types with no kind.  */
#define CFI_type_struct 6
#define CFI_type_cptr 7
#define CFI_type_cfunptr 8
#define CFI_type_other -1

/* Types with kind parameter.
   The kind parameter represents the type's byte size.  The exception is
   real kind = 10, which has byte size of 128 bits but 80 bit precision.
   Complex variables are double the byte size of their real counterparts.
   The ucs4_char matches wchar_t if sizeof (wchar_t) == 4.
 */
#define CFI_type_char (CFI_type_Character + (1 << CFI_type_kind_shift))
#define CFI_type_ucs4_char (CFI_type_Character + (4 << CFI_type_kind_shift))

/* C-Fortran Interoperability types. */
#define CFI_type_signed_char (CFI_type_Integer + (sizeof (char) << CFI_type_kind_shift))
#define CFI_type_short (CFI_type_Integer + (sizeof (short) << CFI_type_kind_shift))
#define CFI_type_int (CFI_type_Integer + (sizeof (int) << CFI_type_kind_shift))
#define CFI_type_long (CFI_type_Integer + (sizeof (long) << CFI_type_kind_shift))
#define CFI_type_long_long (CFI_type_Integer + (sizeof (long long) << CFI_type_kind_shift))
#define CFI_type_size_t (CFI_type_Integer + (sizeof (size_t) << CFI_type_kind_shift))
#define CFI_type_int8_t (CFI_type_Integer + (sizeof (int8_t) << CFI_type_kind_shift))
#define CFI_type_int16_t (CFI_type_Integer + (sizeof (int16_t) << CFI_type_kind_shift))
#define CFI_type_int32_t (CFI_type_Integer + (sizeof (int32_t) << CFI_type_kind_shift))
#define CFI_type_int64_t (CFI_type_Integer + (sizeof (int64_t) << CFI_type_kind_shift))
#define CFI_type_int_least8_t (CFI_type_Integer + (sizeof (int_least8_t) << CFI_type_kind_shift))
#define CFI_type_int_least16_t (CFI_type_Integer + (sizeof (int_least16_t) << CFI_type_kind_shift))
#define CFI_type_int_least32_t (CFI_type_Integer + (sizeof (int_least32_t) << CFI_type_kind_shift))
#define CFI_type_int_least64_t (CFI_type_Integer + (sizeof (int_least64_t) << CFI_type_kind_shift))
#define CFI_type_int_fast8_t (CFI_type_Integer + (sizeof (int_fast8_t) << CFI_type_kind_shift))
#define CFI_type_int_fast16_t (CFI_type_Integer + (sizeof (int_fast16_t) << CFI_type_kind_shift))
#define CFI_type_int_fast32_t (CFI_type_Integer + (sizeof (int_fast32_t) << CFI_type_kind_shift))
#define CFI_type_int_fast64_t (CFI_type_Integer + (sizeof (int_fast64_t) << CFI_type_kind_shift))
#define CFI_type_intmax_t (CFI_type_Integer + (sizeof (intmax_t) << CFI_type_kind_shift))
#define CFI_type_intptr_t (CFI_type_Integer + (sizeof (intptr_t) << CFI_type_kind_shift))
#define CFI_type_ptrdiff_t (CFI_type_Integer + (sizeof (ptrdiff_t) << CFI_type_kind_shift))
#define CFI_type_Bool (CFI_type_Logical + (sizeof (_Bool) << CFI_type_kind_shift))
#define CFI_type_float (CFI_type_Real + (sizeof (float) << CFI_type_kind_shift))
#define CFI_type_double (CFI_type_Real + (sizeof (double) << CFI_type_kind_shift))
#define CFI_type_float_Complex (CFI_type_Complex + (sizeof (float) << CFI_type_kind_shift))
#define CFI_type_double_Complex (CFI_type_Complex + (sizeof (double) << CFI_type_kind_shift))

/* If GCC supports int128_t on this target, it predefines
   __SIZEOF_INT128__ to 16.  */
#if defined(__SIZEOF_INT128__)
#if (__SIZEOF_INT128__ == 16)
#define CFI_type_int128_t (CFI_type_Integer + (16 << CFI_type_kind_shift))
#define CFI_type_int_least128_t (CFI_type_Integer + (16 << CFI_type_kind_shift))
#define CFI_type_int_fast128_t (CFI_type_Integer + (16 << CFI_type_kind_shift))
#else
#error "Can't determine kind of int128_t"
#endif
#else
#define CFI_type_int128_t -2
#define CFI_type_int_least128_t -2
#define CFI_type_int_fast128_t -2
#endif

/* The situation with long double support is more complicated; we need to
   examine the type in more detail to figure out its kind.
   GCC and some other compilers predefine the __LDBL* macros; otherwise
   get the parameters we need from float.h.  */

#if (defined (__LDBL_MANT_DIG__) \
     && defined (__LDBL_MIN_EXP__) \
     && defined (__LDBL_MAX_EXP__) \
     && defined (__DBL_MANT_DIG__) \
     && defined (__DBL_MIN_EXP__) \
     && defined (__DBL_MAX_EXP__))
#define __CFI_LDBL_MANT_DIG__ __LDBL_MANT_DIG__
#define __CFI_LDBL_MIN_EXP__ __LDBL_MIN_EXP__
#define __CFI_LDBL_MAX_EXP__ __LDBL_MAX_EXP__
#define __CFI_DBL_MANT_DIG__ __DBL_MANT_DIG__
#define __CFI_DBL_MIN_EXP__ __DBL_MIN_EXP__
#define __CFI_DBL_MAX_EXP__ __DBL_MAX_EXP__

#else
#include <float.h>

#if (defined (LDBL_MANT_DIG) \
     && defined (LDBL_MIN_EXP) \
     && defined (LDBL_MAX_EXP) \
     && defined (DBL_MANT_DIG) \
     && defined (DBL_MIN_EXP) \
     && defined (DBL_MAX_EXP))
#define __CFI_LDBL_MANT_DIG__ LDBL_MANT_DIG
#define __CFI_LDBL_MIN_EXP__ LDBL_MIN_EXP
#define __CFI_LDBL_MAX_EXP__ LDBL_MAX_EXP
#define __CFI_DBL_MANT_DIG__ DBL_MANT_DIG
#define __CFI_DBL_MIN_EXP__ DBL_MIN_EXP
#define __CFI_DBL_MAX_EXP__ DBL_MAX_EXP

#else
#define CFI_no_long_double 1

#endif  /* Definitions from float.h.  */
#endif  /* Definitions from compiler builtins.  */

/* Can't determine anything about long double support?  */
#if (defined (CFI_no_long_double))
#define CFI_type_long_double -2
#define CFI_type_long_double_Complex -2

/* Long double is the same kind as double.  */
#elif (__CFI_LDBL_MANT_DIG__ == __CFI_DBL_MANT_DIG__ \
     && __CFI_LDBL_MIN_EXP__ == __CFI_DBL_MIN_EXP__ \
     && __CFI_LDBL_MAX_EXP__ == __CFI_DBL_MAX_EXP__)
#define CFI_type_long_double CFI_type_double
#define CFI_type_long_double_Complex CFI_type_double_Complex

/* This is the 80-bit encoding on x86; Fortran assigns it kind 10.  */
#elif ((__CFI_LDBL_MANT_DIG__ == 64 || __CFI_LDBL_MANT_DIG__ == 53) \
       && __CFI_LDBL_MIN_EXP__ == -16381 \
       && __CFI_LDBL_MAX_EXP__ == 16384)
#define CFI_type_long_double (CFI_type_Real + (10 << CFI_type_kind_shift))
#define CFI_type_long_double_Complex (CFI_type_Complex + (10 << CFI_type_kind_shift))

/* This is the 96-bit encoding on m68k; Fortran assigns it kind 10.  */
#elif (__CFI_LDBL_MANT_DIG__ == 64 \
       && __CFI_LDBL_MIN_EXP__ == -16382 \
       && __CFI_LDBL_MAX_EXP__ == 16384)
#define CFI_type_long_double (CFI_type_Real + (10 << CFI_type_kind_shift))
#define CFI_type_long_double_Complex (CFI_type_Complex + (10 << CFI_type_kind_shift))

/* This is the IEEE 128-bit encoding, same as _Float128.  */
#elif (__CFI_LDBL_MANT_DIG__ == 113 \
       && __CFI_LDBL_MIN_EXP__ == -16381 \
       && __CFI_LDBL_MAX_EXP__ == 16384)
#define CFI_type_long_double (CFI_type_Real + (16 << CFI_type_kind_shift))
#define CFI_type_long_double_Complex (CFI_type_Complex + (16 << CFI_type_kind_shift))

/* This is the IBM128 encoding used on PowerPC; also assigned kind 16.  */
#elif (__CFI_LDBL_MANT_DIG__ == 106 \
       && __CFI_LDBL_MIN_EXP__ == -968 \
       && __CFI_LDBL_MAX_EXP__ == 1024)
#define CFI_type_long_double (CFI_type_Real + (16 << CFI_type_kind_shift))
#define CFI_type_long_double_Complex (CFI_type_Complex + (16 << CFI_type_kind_shift))
#define CFI_no_float128 1

/* It's a bug if we get here.  If you've got a target that has some other
   long double encoding, you need add something here for Fortran to
   recognize it.  */
#else
#error "Can't determine kind of long double"
#endif

/* Similarly for _Float128.  This always refers to the IEEE encoding
   and not some other 128-bit representation, so if we already used
   kind 16 for a non-IEEE representation, this one must be unsupported
   in Fortran even if it's available in C.  */
#if (!defined (CFI_no_float128) \
     && defined(__FLT128_MANT_DIG__) && __FLT128_MANT_DIG__ == 113  \
     && defined(__FLT128_MIN_EXP__) && __FLT128_MIN_EXP__ == -16381 \
     && defined(__FLT128_MAX_EXP__) && __FLT128_MAX_EXP__ == 16384)
#define CFI_type_float128 (CFI_type_Real + (16 << CFI_type_kind_shift))
#define CFI_type_float128_Complex (CFI_type_Complex + (16 << CFI_type_kind_shift))
#else
#define CFI_type_float128 -2
#define CFI_type_float128_Complex -2
#endif

#ifdef __cplusplus
}
#endif

#endif /* ISO_FORTRAN_BINDING_H */
Commit	Line	Data
bbf18dc5	1	/* Declarations for ISO Fortran binding.
a945c346	2	Copyright (C) 2018-2024 Free Software Foundation, Inc.
bbf18dc5 PT	3	Contributed by Daniel Celis Garza <celisdanieljr@gmail.com>
	4
	5	This file is part of the GNU Fortran runtime library (libgfortran).
	6
	7	Libgfortran is free software; you can redistribute it and/or modify
	8	it under the terms of the GNU General Public License as published by
	9	the Free Software Foundation; either version 3, or (at your option)
	10	any later version.
	11
	12	Libgfortran is distributed in the hope that it will be useful,
	13	but WITHOUT ANY WARRANTY; without even the implied warranty of
	14	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	15	GNU General Public License for more details.
	16
	17	Under Section 7 of GPL version 3, you are granted additional
	18	permissions described in the GCC Runtime Library Exception, version
	19	3.1, as published by the Free Software Foundation.
	20
	21	You should have received a copy of the GNU General Public License and
	22	a copy of the GCC Runtime Library Exception along with this program;
	23	see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
	24	<http://www.gnu.org/licenses/>. */
	25
	26	#ifndef ISO_FORTRAN_BINDING_H
	27	#define ISO_FORTRAN_BINDING_H
	28
	29	#ifdef __cplusplus
	30	extern "C" {
	31	#endif
	32
	33	#include <stddef.h> /* Standard ptrdiff_t tand size_t. */
	34	#include <stdint.h> /* Integer types. */
	35
	36	/* Constants, defined as macros. */
	37	#define CFI_VERSION 1
	38	#define CFI_MAX_RANK 15
	39
	40	/* Attributes. */
	41	#define CFI_attribute_pointer 0
	42	#define CFI_attribute_allocatable 1
	43	#define CFI_attribute_other 2
	44
	45	/* Error codes.
fef67987 SL	46	Note that CFI_FAILURE and CFI_INVALID_STRIDE are specific to GCC
fef67987 SL	47	and not part of the Fortran standard */
bbf18dc5 PT	48	#define CFI_SUCCESS 0
	49	#define CFI_FAILURE 1
	50	#define CFI_ERROR_BASE_ADDR_NULL 2
	51	#define CFI_ERROR_BASE_ADDR_NOT_NULL 3
	52	#define CFI_INVALID_ELEM_LEN 4
	53	#define CFI_INVALID_RANK 5
	54	#define CFI_INVALID_TYPE 6
	55	#define CFI_INVALID_ATTRIBUTE 7
	56	#define CFI_INVALID_EXTENT 8
	57	#define CFI_INVALID_STRIDE 9
	58	#define CFI_INVALID_DESCRIPTOR 10
	59	#define CFI_ERROR_MEM_ALLOCATION 11
	60	#define CFI_ERROR_OUT_OF_BOUNDS 12
	61
	62	/* CFI type definitions. */
	63	typedef ptrdiff_t CFI_index_t;
	64	typedef int8_t CFI_rank_t;
	65	typedef int8_t CFI_attribute_t;
	66	typedef int16_t CFI_type_t;
	67
	68	/* CFI_dim_t. */
	69	typedef struct CFI_dim_t
	70	{
	71	CFI_index_t lower_bound;
	72	CFI_index_t extent;
	73	CFI_index_t sm;
	74	}
	75	CFI_dim_t;
	76
	77	/* CFI_cdesc_t, C descriptors are cast to this structure as follows:
	78	CFI_CDESC_T(CFI_MAX_RANK) foo;
	79	CFI_cdesc_t * bar = (CFI_cdesc_t *) &foo;
	80	*/
	81	typedef struct CFI_cdesc_t
	82	{
	83	void *base_addr;
	84	size_t elem_len;
	85	int version;
	86	CFI_rank_t rank;
	87	CFI_attribute_t attribute;
	88	CFI_type_t type;
	89	CFI_dim_t dim[];
	90	}
	91	CFI_cdesc_t;
	92
	93	/* CFI_CDESC_T with an explicit type. */
	94	#define CFI_CDESC_TYPE_T(r, base_type) \
	95	struct { \
	96	base_type *base_addr; \
	97	size_t elem_len; \
	98	int version; \
	99	CFI_rank_t rank; \
	100	CFI_attribute_t attribute; \
	101	CFI_type_t type; \
	102	CFI_dim_t dim[r]; \
	103	}
	104	#define CFI_CDESC_T(r) CFI_CDESC_TYPE_T (r, void)
	105
	106	/* CFI function declarations. */
	107	extern void CFI_address (const CFI_cdesc_t , const CFI_index_t []);
	108	extern int CFI_allocate (CFI_cdesc_t *, const CFI_index_t [], const CFI_index_t [],
	109	size_t);
	110	extern int CFI_deallocate (CFI_cdesc_t *);
	111	extern int CFI_establish (CFI_cdesc_t , void , CFI_attribute_t, CFI_type_t, size_t,
112	CFI_rank_t, const CFI_index_t []);
113	extern int CFI_is_contiguous (const CFI_cdesc_t *);
114	extern int CFI_section (CFI_cdesc_t , const CFI_cdesc_t , const CFI_index_t [],
115	const CFI_index_t [], const CFI_index_t []);
116	extern int CFI_select_part (CFI_cdesc_t , const CFI_cdesc_t , size_t, size_t);
117	extern int CFI_setpointer (CFI_cdesc_t , CFI_cdesc_t , const CFI_index_t []);
118
119	/* Types and kind numbers. Allows bitwise and to reveal the intrinsic type of a kind type. It also allows us to find the kind parameter by inverting the bit-shift equation.
120	CFI_type_kind_shift = 8
121	CFI_intrinsic_type = 0 0 0 0 0 0 0 0 0 0 1 0
122	CFI_type_kind = 0 0 0 0 0 0 0 0 1 0 0 0
123	CFI_type_example = CFI_intrinsic_type + (CFI_type_kind << CFI_type_kind_shift)
124	Defining the CFI_type_example.
125	CFI_type_kind = 0 0 0 0 0 0 0 0 1 0 0 0 << CFI_type_kind_shift
126	-------------------------
127	1 0 0 0 0 0 0 0 0 0 0 0 +
128	CFI_intrinsic_type = 0 0 0 0 0 0 0 0 0 0 1 0
129	-------------------------
130	CFI_type_example = 1 0 0 0 0 0 0 0 0 0 1 0
131	Finding the intrinsic type with the logical mask.
132	CFI_type_example = 1 0 0 0 0 0 0 0 0 0 1 0 &
133	CFI_type_mask = 0 0 0 0 1 1 1 1 1 1 1 1
134	-------------------------
135	CFI_intrinsic_type = 0 0 0 0 0 0 0 0 0 0 1 0
136	Using the intrinsic type and kind shift to find the kind value of the type.
137	CFI_type_kind = (CFI_type_example - CFI_intrinsic_type) >> CFI_type_kind_shift
138	CFI_type_example = 1 0 0 0 0 0 0 0 0 0 1 0 -
139	CFI_intrinsic_type = 0 0 0 0 0 0 0 0 0 0 1 0
140	-------------------------
141	1 0 0 0 0 0 0 0 0 0 0 0 >> CFI_type_kind_shift
142	-------------------------
143	CFI_type_kind = 0 0 0 0 0 0 0 0 1 0 0 0
144	*/
145	#define CFI_type_mask 0xFF
146	#define CFI_type_kind_shift 8
147
148	/* Intrinsic types. Their kind number defines their storage size. */
149	#define CFI_type_Integer 1
150	#define CFI_type_Logical 2
151	#define CFI_type_Real 3
152	#define CFI_type_Complex 4
153	#define CFI_type_Character 5
154
64f96237	155	/* Types with no kind. */
bbf18dc5 PT	156	#define CFI_type_struct 6
bbf18dc5 PT	157	#define CFI_type_cptr 7
64f96237	158	#define CFI_type_cfunptr 8
bbf18dc5 PT	159	#define CFI_type_other -1
	160
	161	/* Types with kind parameter.
fef67987 SL	162	The kind parameter represents the type's byte size. The exception is
	163	real kind = 10, which has byte size of 128 bits but 80 bit precision.
	164	Complex variables are double the byte size of their real counterparts.
	165	The ucs4_char matches wchar_t if sizeof (wchar_t) == 4.
bbf18dc5 PT	166	*/
	167	#define CFI_type_char (CFI_type_Character + (1 << CFI_type_kind_shift))
	168	#define CFI_type_ucs4_char (CFI_type_Character + (4 << CFI_type_kind_shift))
	169
	170	/* C-Fortran Interoperability types. */
fef67987 SL	171	#define CFI_type_signed_char (CFI_type_Integer + (sizeof (char) << CFI_type_kind_shift))
	172	#define CFI_type_short (CFI_type_Integer + (sizeof (short) << CFI_type_kind_shift))
	173	#define CFI_type_int (CFI_type_Integer + (sizeof (int) << CFI_type_kind_shift))
	174	#define CFI_type_long (CFI_type_Integer + (sizeof (long) << CFI_type_kind_shift))
	175	#define CFI_type_long_long (CFI_type_Integer + (sizeof (long long) << CFI_type_kind_shift))
	176	#define CFI_type_size_t (CFI_type_Integer + (sizeof (size_t) << CFI_type_kind_shift))
	177	#define CFI_type_int8_t (CFI_type_Integer + (sizeof (int8_t) << CFI_type_kind_shift))
	178	#define CFI_type_int16_t (CFI_type_Integer + (sizeof (int16_t) << CFI_type_kind_shift))
	179	#define CFI_type_int32_t (CFI_type_Integer + (sizeof (int32_t) << CFI_type_kind_shift))
	180	#define CFI_type_int64_t (CFI_type_Integer + (sizeof (int64_t) << CFI_type_kind_shift))
	181	#define CFI_type_int_least8_t (CFI_type_Integer + (sizeof (int_least8_t) << CFI_type_kind_shift))
	182	#define CFI_type_int_least16_t (CFI_type_Integer + (sizeof (int_least16_t) << CFI_type_kind_shift))
	183	#define CFI_type_int_least32_t (CFI_type_Integer + (sizeof (int_least32_t) << CFI_type_kind_shift))
	184	#define CFI_type_int_least64_t (CFI_type_Integer + (sizeof (int_least64_t) << CFI_type_kind_shift))
	185	#define CFI_type_int_fast8_t (CFI_type_Integer + (sizeof (int_fast8_t) << CFI_type_kind_shift))
	186	#define CFI_type_int_fast16_t (CFI_type_Integer + (sizeof (int_fast16_t) << CFI_type_kind_shift))
	187	#define CFI_type_int_fast32_t (CFI_type_Integer + (sizeof (int_fast32_t) << CFI_type_kind_shift))
	188	#define CFI_type_int_fast64_t (CFI_type_Integer + (sizeof (int_fast64_t) << CFI_type_kind_shift))
	189	#define CFI_type_intmax_t (CFI_type_Integer + (sizeof (intmax_t) << CFI_type_kind_shift))
	190	#define CFI_type_intptr_t (CFI_type_Integer + (sizeof (intptr_t) << CFI_type_kind_shift))
	191	#define CFI_type_ptrdiff_t (CFI_type_Integer + (sizeof (ptrdiff_t) << CFI_type_kind_shift))
	192	#define CFI_type_Bool (CFI_type_Logical + (sizeof (_Bool) << CFI_type_kind_shift))
	193	#define CFI_type_float (CFI_type_Real + (sizeof (float) << CFI_type_kind_shift))
	194	#define CFI_type_double (CFI_type_Real + (sizeof (double) << CFI_type_kind_shift))
	195	#define CFI_type_float_Complex (CFI_type_Complex + (sizeof (float) << CFI_type_kind_shift))
	196	#define CFI_type_double_Complex (CFI_type_Complex + (sizeof (double) << CFI_type_kind_shift))
13beaf9e SL	197
	198	/* If GCC supports int128_t on this target, it predefines
	199	__SIZEOF_INT128__ to 16. */
	200	#if defined(__SIZEOF_INT128__)
	201	#if (__SIZEOF_INT128__ == 16)
	202	#define CFI_type_int128_t (CFI_type_Integer + (16 << CFI_type_kind_shift))
	203	#define CFI_type_int_least128_t (CFI_type_Integer + (16 << CFI_type_kind_shift))
	204	#define CFI_type_int_fast128_t (CFI_type_Integer + (16 << CFI_type_kind_shift))
	205	#else
	206	#error "Can't determine kind of int128_t"
	207	#endif
	208	#else
	209	#define CFI_type_int128_t -2
	210	#define CFI_type_int_least128_t -2
	211	#define CFI_type_int_fast128_t -2
	212	#endif
	213
	214	/* The situation with long double support is more complicated; we need to
654187d0 TB	215	examine the type in more detail to figure out its kind.
	216	GCC and some other compilers predefine the __LDBL* macros; otherwise
	217	get the parameters we need from float.h. */
	218
	219	#if (defined (__LDBL_MANT_DIG__) \
	220	&& defined (__LDBL_MIN_EXP__) \
	221	&& defined (__LDBL_MAX_EXP__) \
	222	&& defined (__DBL_MANT_DIG__) \
	223	&& defined (__DBL_MIN_EXP__) \
	224	&& defined (__DBL_MAX_EXP__))
	225	#define __CFI_LDBL_MANT_DIG__ __LDBL_MANT_DIG__
	226	#define __CFI_LDBL_MIN_EXP__ __LDBL_MIN_EXP__
	227	#define __CFI_LDBL_MAX_EXP__ __LDBL_MAX_EXP__
	228	#define __CFI_DBL_MANT_DIG__ __DBL_MANT_DIG__
	229	#define __CFI_DBL_MIN_EXP__ __DBL_MIN_EXP__
	230	#define __CFI_DBL_MAX_EXP__ __DBL_MAX_EXP__
	231
	232	#else
	233	#include <float.h>
	234
	235	#if (defined (LDBL_MANT_DIG) \
	236	&& defined (LDBL_MIN_EXP) \
	237	&& defined (LDBL_MAX_EXP) \
	238	&& defined (DBL_MANT_DIG) \
	239	&& defined (DBL_MIN_EXP) \
	240	&& defined (DBL_MAX_EXP))
	241	#define __CFI_LDBL_MANT_DIG__ LDBL_MANT_DIG
	242	#define __CFI_LDBL_MIN_EXP__ LDBL_MIN_EXP
	243	#define __CFI_LDBL_MAX_EXP__ LDBL_MAX_EXP
	244	#define __CFI_DBL_MANT_DIG__ DBL_MANT_DIG
	245	#define __CFI_DBL_MIN_EXP__ DBL_MIN_EXP
	246	#define __CFI_DBL_MAX_EXP__ DBL_MAX_EXP
	247
	248	#else
	249	#define CFI_no_long_double 1
	250
	251	#endif /* Definitions from float.h. */
	252	#endif /* Definitions from compiler builtins. */
	253
	254	/* Can't determine anything about long double support? */
	255	#if (defined (CFI_no_long_double))
	256	#define CFI_type_long_double -2
	257	#define CFI_type_long_double_Complex -2
13beaf9e SL	258
13beaf9e SL	259	/* Long double is the same kind as double. */
654187d0 TB	260	#elif (__CFI_LDBL_MANT_DIG__ == __CFI_DBL_MANT_DIG__ \
	261	&& __CFI_LDBL_MIN_EXP__ == __CFI_DBL_MIN_EXP__ \
	262	&& __CFI_LDBL_MAX_EXP__ == __CFI_DBL_MAX_EXP__)
13beaf9e SL	263	#define CFI_type_long_double CFI_type_double
	264	#define CFI_type_long_double_Complex CFI_type_double_Complex
	265
	266	/* This is the 80-bit encoding on x86; Fortran assigns it kind 10. */
654187d0 TB	267	#elif ((__CFI_LDBL_MANT_DIG__ == 64 \|\| __CFI_LDBL_MANT_DIG__ == 53) \
	268	&& __CFI_LDBL_MIN_EXP__ == -16381 \
	269	&& __CFI_LDBL_MAX_EXP__ == 16384)
13beaf9e SL	270	#define CFI_type_long_double (CFI_type_Real + (10 << CFI_type_kind_shift))
	271	#define CFI_type_long_double_Complex (CFI_type_Complex + (10 << CFI_type_kind_shift))
	272
fc4a29c0	273	/* This is the 96-bit encoding on m68k; Fortran assigns it kind 10. */
654187d0 TB	274	#elif (__CFI_LDBL_MANT_DIG__ == 64 \
	275	&& __CFI_LDBL_MIN_EXP__ == -16382 \
	276	&& __CFI_LDBL_MAX_EXP__ == 16384)
fc4a29c0 AS	277	#define CFI_type_long_double (CFI_type_Real + (10 << CFI_type_kind_shift))
	278	#define CFI_type_long_double_Complex (CFI_type_Complex + (10 << CFI_type_kind_shift))
	279
00b1324f	280	/* This is the IEEE 128-bit encoding, same as _Float128. */
654187d0 TB	281	#elif (__CFI_LDBL_MANT_DIG__ == 113 \
	282	&& __CFI_LDBL_MIN_EXP__ == -16381 \
	283	&& __CFI_LDBL_MAX_EXP__ == 16384)
13beaf9e SL	284	#define CFI_type_long_double (CFI_type_Real + (16 << CFI_type_kind_shift))
	285	#define CFI_type_long_double_Complex (CFI_type_Complex + (16 << CFI_type_kind_shift))
	286
	287	/* This is the IBM128 encoding used on PowerPC; also assigned kind 16. */
654187d0 TB	288	#elif (__CFI_LDBL_MANT_DIG__ == 106 \
	289	&& __CFI_LDBL_MIN_EXP__ == -968 \
	290	&& __CFI_LDBL_MAX_EXP__ == 1024)
13beaf9e SL	291	#define CFI_type_long_double (CFI_type_Real + (16 << CFI_type_kind_shift))
	292	#define CFI_type_long_double_Complex (CFI_type_Complex + (16 << CFI_type_kind_shift))
	293	#define CFI_no_float128 1
	294
	295	/* It's a bug if we get here. If you've got a target that has some other
	296	long double encoding, you need add something here for Fortran to
	297	recognize it. */
	298	#else
	299	#error "Can't determine kind of long double"
	300	#endif
	301
00b1324f	302	/* Similarly for _Float128. This always refers to the IEEE encoding
13beaf9e SL	303	and not some other 128-bit representation, so if we already used
	304	kind 16 for a non-IEEE representation, this one must be unsupported
	305	in Fortran even if it's available in C. */
	306	#if (!defined (CFI_no_float128) \
	307	&& defined(__FLT128_MANT_DIG__) && __FLT128_MANT_DIG__ == 113 \
	308	&& defined(__FLT128_MIN_EXP__) && __FLT128_MIN_EXP__ == -16381 \
	309	&& defined(__FLT128_MAX_EXP__) && __FLT128_MAX_EXP__ == 16384)
	310	#define CFI_type_float128 (CFI_type_Real + (16 << CFI_type_kind_shift))
	311	#define CFI_type_float128_Complex (CFI_type_Complex + (16 << CFI_type_kind_shift))
	312	#else
	313	#define CFI_type_float128 -2
	314	#define CFI_type_float128_Complex -2
	315	#endif
	316
	317	#ifdef __cplusplus
	318	}
	319	#endif
	320
	321	#endif /* ISO_FORTRAN_BINDING_H */